US 11,864,785 B1
Ultrasonic transducer tissue selectivity
Daniel J. Cotter, North Easton, MA (US); Prakash Manandhar, Lawrence, MA (US); Nicholas Allen, Bedford, MA (US); and Saurav V. Gupta, Medway, MA (US)
Assigned to Integra LifeSciences Enterprises, LLLP, Princeton, NJ (US)
Filed by Integra LifeSciences Enterprises, LLLP, Princeton, NJ (US)
Filed on Jun. 22, 2020, as Appl. No. 16/907,841.
Application 16/907,841 is a division of application No. 15/816,666, filed on Nov. 17, 2017, granted, now 10,687,840.
Claims priority of provisional application 62/423,407, filed on Nov. 17, 2016.
Int. Cl. A61B 17/32 (2006.01); B06B 1/02 (2006.01); B06B 1/06 (2006.01); A61B 17/00 (2006.01)
CPC A61B 17/320068 (2013.01) [B06B 1/0215 (2013.01); B06B 1/0618 (2013.01); A61B 2017/00146 (2013.01); A61B 2017/00185 (2013.01); A61B 2017/00973 (2013.01); A61B 2017/32007 (2017.08); A61B 2017/320069 (2017.08); A61B 2217/005 (2013.01); B06B 2201/76 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An ultrasonic surgical apparatus comprising:
a handpiece;
at least one transducer disposed in the handpiece;
a surgical tip operably coupled to the at least one transducer; the ultrasonic surgical apparatus configured to modulate amplitude of a drive signal applied to the at least one transducer by:
identifying a selection of a particular tissue selectivity level, the particular tissue selectivity level being one of a plurality of available tissue selectivity levels;
determining particular waveform modification parameters for the particular tissue selectivity level, wherein the particular waveform modification parameters are particularized to the particular tissue selectivity level and are determined based on being stored, in one or more computer readable media, in association with the particular tissue selectivity level; and
in response to the selection of the particular tissue selectivity level and until occurrence of a stop condition, the ultrasonic surgical apparatus is further configured to:
generate the drive signal based on the particular waveform modification parameters by selectively modifying a feedback based reference drive signal based on the particular waveform modification parameters to generate the drive signal with an amplitude that is modulated based on the particular waveform modification parameters that are stored in association with the particular tissue selectivity level.